I have found a bug that can be reproduced this way. Run the CLIM Listener, enter the command "Show Command Table" and hit ENTER without providing an argument. An ACCEPTING-VALUES dialog prompting for the missing argument appears. Left-clicking the input field generates this error: No matching method for the generic function #<STANDARD-GENERIC-FUNCTION CLIM:COMMAND-TABLE-NAME (1) {284FF439}>, when called with arguments (NIL). [Condition of type PCL::NO-APPLICABLE-METHOD-ERROR] Restarts: 0: [CONTINUE ] Retry call to :FUNCTION. 1: [ABORT ] Return to application command loop 2: [RETURN-TO-LISTENER] Return to listener. 3: [DESTROY ] Destroy the process Debug (type H for help) ("DEFMETHOD NO-APPLICABLE-METHOD (T)" #<unused-arg> #<unused-arg> #<STANDARD-GENERIC-FUNCTION CLIM:COMMAND-TABLE-NAME (1) {284FF439}> (NIL)) Source: Error finding source: Error in function DEBUG::GET-FILE-TOP-LEVEL-FORM: Source file no longer exists: target:pcl/braid.lisp. 0] I use the latest McCLIM CVS sources with CMUCL Snapshot 2005-01 under Slackware Linux 10.0. Paolo -- Lisp Propulsion Laboratory log - http://www.paoloamoroso.it/log